How to Choose a Mattress for a Baby

Why is the right mattress for a baby so important?

Sleep has a huge influence on a child's development. While the baby sleeps, brain connections are actively formed, immunity strengthens, and the body grows. For sleep to be truly restorative, it needs suitable conditions—and the most basic of these is a quality child's mattress. An unsuitable mattress can affect not only the child's sleep but also the correct development of the spine. Since a newborn does not yet have a fully developed skeleton or muscular support, it is crucial that the mattress supports the correct position of the spine. A mattress that is too soft can cause undesirable curving of the back or even increase the risk of suffocation when changing position during sleep. Conversely, a mattress that is too hard can be uncomfortable for the child and cause restless sleep. What type of mattress is ideal for a child's crib? When choosing, it is important to consider not only the price but primarily the composition of materials, firmness, breathability, and dimensions. Let's take a closer look.

How to choose a mattress for a baby: What to focus on?

To know how to choose a mattress for a child's crib, pay attention to the following points:

• Material – hypoallergenic and certified composition of the mattress free from harmful substances. The health of the child is paramount, so it is essential to choose mattresses made from hypoallergenic materials that do not contain harmful chemicals. Ideally, they should have OEKO-TEX Standard 100 certification or similar health certifications.
• Firmness – babies need a medium-firm to firm mattress. The mattress should not be too soft—there is a risk of the face sinking into it, which can be dangerous. It should also not be too hard. The most suitable is a medium-firm to firm mattress that ensures proper body support while remaining comfortable.
• Breathability – ventilation and reduction of overheating risk. A baby's mattress must be well-ventilated. This means it should allow air to flow through the material, reducing the risk of overheating and excessive sweating. Ideally, choose mattresses with ventilation channels or breathable cores.
• Removable and washable cover is a must – cotton or made from another natural material, preferably with antibacterial treatment. The cover should be easily washable (ideally at 60 °C). Bonus? A nice children's design that delights not only the parent's eye but also the baby’s.
• Mattress size – fits perfectly into the crib. The most common sizes for children's mattresses are 120×60 cm or 140×70 cm. The mattress must fit perfectly in the crib—not one centimeter smaller or larger. There should be no gap between the mattress and the edge of the crib where the child could get stuck with their hand or head.

How often to replace the mattress in a child's crib?

A mattress for a baby does not last forever, so it is essential to know not only what kind of mattress to use in the crib but also how often to replace it for children. It should be regularly checked and replaced in time. Generally, the recommended replacement is every 3–5 years, or sooner if signs of wear appear. If the child inherited the mattress from a sibling, always check its condition carefully. Mattresses deform over time, and even if they look good at first glance, they may not provide adequate support anymore. While you should follow these general guidelines on how often to change a mattress, for hygiene reasons it is recommended to purchase a new mattress after each child—to prevent the transmission of bacteria, allergens, or mold.

How to tell if a mattress is no longer suitable for a baby?

• Sunken mattress - Do you see dents, depressions, or changes in shape on the mattress? This is a sign that it has lost its supportive properties and is not functioning correctly.
• Stains - Spots, mold, or unpleasant odors are clear signals that the mattress is contaminated and not hygienically safe. Small children are very sensitive to various bacteria and allergens, so these signs should not be ignored.
• Loss of firmness - If the mattress does not maintain its shape when pressed, is too soft, or deforms, it no longer provides sufficient support for the baby’s body.
• Impact on the child's sleep - Has your baby started waking up more often at night, being restless, or sleeping less? A poor mattress might be to blame. Children perceive discomfort much more sensitively than adults.

For more information, see our article "How often to change a mattress and how to know it's time for a new one?"

How to properly care for a mattress for a baby?

• Regular airing - From time to time, remove the mattress from the crib, let it "breathe," and air it out—ideally in fresh air. This will prevent mold formation and unpleasant odors.
• Use a mattress protector - A waterproof protector is great preventive measure against contamination. It prevents moisture, sweat, or urine from penetrating the mattress. Protectors are washable and easily replaceable.
• Wash the cover - If the mattress has a removable cover, it is recommended to wash it at least once a month, or immediately after it gets dirty. Regular washing of the cover is crucial for hygiene and allergy prevention.
• Maintain crib hygiene - Regularly change bed linens, wash bumpers, and check the overall cleanliness of the crib. A baby needs a calm and clean environment to support healthy and undisturbed sleep.

Proper care will extend the mattress's lifespan and ensure a healthy sleep environment. For detailed information on how to prolong mattress life, read our article "What is the lifespan of a mattress and how to take care of it?"

Where to buy a quality mattress for a child's crib?

Not sure what is the best mattress for a child's crib? A popular choice for parents looking for a quality and safe solution for their baby's sleep is Purtex mattresses. Our company Purtex has long been specializing in the production of health and children's mattresses that meet strict standards in terms of safety and hygiene. Only certified materials free of harmful substances are used in the production process, which is crucial for babies. Purtex mattresses are designed to have optimal firmness supporting the proper development of children's spines while being well-ventilated, thereby minimizing the risk of overheating or sweating during sleep. Thanks to precise workmanship and attention to detail, these mattresses have a long lifespan and also offer removable and washable covers that ensure maximum hygiene. Parents also appreciate the wide range of types and sizes, making it easy to choose the ideal model that fits a specific crib.

Purtex also represents a combination of Czech quality, experience, and trustworthiness, making it a great choice for safe and healthy sleep for the smallest. With us, you can easily find out which mattress for a baby is the right one. Check out our offer and choose the children's mattresses that will ensure your baby enjoys a peaceful and healthy sleep.